坐直抬头用英文怎么说

"Sit up straight and look up" 是坐直抬头的英文表达。

这个短语的来源可能源自人们对身体健康和美观的关注。坐直抬头是一种良好的坐姿，可以有助于改善身体的平衡和姿势，并帮助人们看起来更有礼貌和自信。

以下是一些英文例句及其中文翻译：

"Sit up straight and look up when you're talking to me." (和我说话时坐直抬头。)
"Good posture is important. Remember to sit up straight and look up when you're using your computer." (良好的姿势很重要。记住在用电脑时坐直抬头。)
"It's rude to slouch and look down when you're talking to someone. Sit up straight and look up to show respect." (当你和别人说话时身体倾斜看下去是不礼貌的。坐直抬头表示尊重。)